电器与能效管理技术 ›› 2021, Vol. 0 ›› Issue (3): 81-87.doi: 10.16628/j.cnki.2095-8188.2021.03.015

• 电能质量 • 上一篇    下一篇

序贯蒙特卡洛模拟下计及保护动作特性的电压暂降评估

许鹏程1, 林焱2, 林缔1, 官语1, 陈佑健1   

  1. 1.国网福建省电力有限公司 福州供电公司, 福建 福州 350004
    2.国网福建省电力有限公司 电力科学研究院, 福建 福州 350004
  • 收稿日期:2020-12-01 出版日期:2021-03-30 发布日期:2021-04-14
  • 作者简介:许鹏程(1990—),男,工程师,主要从事电力系统风险及可靠性评估、继电保护、电压暂降等研究。|林焱(1974—),男,教授级高级工程师,主要从事电力系统风险评估、电压暂降等研究。|林缔(1979—),男,高级工程师,主要从事电力系统继电保护等研究。
  • 基金资助:
    * 国网福建省电力有限公司科技项目(521304190027)

Voltage Sag Evaluation Considering Action Characteristics of Protection Based on Sequential Monte Carlo Simulation

XU Pengcheng1, LIN Yan2, LIN Di1, GUAN Yu1, CHEN Youjian1   

  1. 1. Fuzhou Power Supply Company of State Grid Fujian Electric Power Co.,Ltd., Fuzhou 350004, China
    2. Fujian Electric Power Research Institute of State Grid Fujian Electric Power Co.,Ltd., Fuzhou 350004, China
  • Received:2020-12-01 Online:2021-03-30 Published:2021-04-14

摘要:

结合线路保护配置方案的特点,分析了不同保护动作特性对电压暂降的影响。对线路故障率、故障类型、故障持续时间、故障点等不确定因素进行模拟,提出一种序贯蒙特卡洛模拟下计及线路保护动作动作特性的电压暂降评估方法。以IEEE 30节点系统为测试算例进行仿真,计算了系统不同线路保护配置下电压暂降指标,结果表明所提方法能有效定量计算时间维度上电压暂降指标;实际电压暂降随机评估应充分考虑线路保护配置情况,将不同保护的动作特性引入评估模型中。

关键词: 序贯蒙特卡洛, 线路保护, 保护动作特性, 电压暂降

Abstract:

Based on the characteristics of the line protection configuration scheme,the effects of different protection action characteristics on voltage sags were analyzed.The statistical model of fault information in uncertain conditions was established and a method of voltage sag evaluation based on sequential Monte Carlo simulation considering the action characteristics of line protection was proposed.The proposed method was applied to IEEE-30,and the simulation results show that the method can quantitatively calculate the voltage sag index in the time dimension.The characteristic of protection system has an obvious effect on voltage sags frequency assessment.The evaluation of voltage sag should consider the configuration of line protection,and the operating characteristics of different protections should be introduced into the evaluation model.

Key words: sequential Monte Carlo, line protection, characteristic of protection, voltage sag

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